E-sports, as it's called, has enormous popularity in some parts of the world. Tens of thousands attend the biggest pro tournaments. When the "League of Legends" world championships were in South Korea, they filled up soccer stadiums.

Those tournaments aren't at the top of the e-sports totem pole, though. The ones that generate the most buzz tend to be the ones made up of professional teams, like Riot Games' annual "League of Legends" championship. At the latest IESF World Championships, the "League of Legends" tournament only had amateur players.

The next step is getting the governing body on the IOC's radar, which isn't easy.

Right now, the IOC recognizes 35 different governing bodies that sponsor sports which aren't in the Olympics right now, essentially saying those sports are legit and could theoretically be in the games someday.

The sports range from cricket to American football to bridge — but e-sports isn't one of them.

Still, if e-sports could catch the IOC's eye, there are a few reasons why it could be well-suited to the Olympic program. Most notably, e-sports are popular with young people, something the IOC clearly thinks is important.

On top of that, getting a sport into the Olympics just got a little easier. Now, the host city — like Tokyo, which will host the 2020 games — can propose sports it thinks would work well for its games to the IOC, but that doesn't guarantee they'd be around for the next Olympics.

When the IOC approved five new sports for 2020, it said some of them were attractive since they were popular in urban settings and could be held in temporary venues, both of which apply to e-sports.

The hardest thing for e-sports to overcome will probably be the IOC's fondness for tradition, something it's hesitant to push aside. But if skateboarding can make it in, maybe e-sports isn't far behind.